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JPS5285224A |
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JPS5285226A |
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JPS5285228A |
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JPS5224124B1 |
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JPS5224152B1 |
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JPS5222364B2 |
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JPS5222363B2 |
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JPS5266533A |
Para-coupled products of the 1-naphthol series can be destroyed in the presence of the ortho-coupled product by reduction with salts of dithionous acid or of hydroxymethanesulphinic acid or with hydrazine optionally in the presence of re...
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JPS5266535A |
Trisazo dyes of high tinctorial strength and excellent fastness have the structure where one of M and M1 is as more fully set out below.
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JPS5216487B2 |
The disazo pigment of the formula CHARACTERIZED BY A SPECIFIC SURFACE OF 12 - 20, PREFERABLY 13 - 18 M2/G, A MAXIMUM OF THE DISTRIBUTION OF THE GRAIN SIZES OF BETWEEN 500 AND 1000 NM AND A PROPORTION OF THESE GRAIN SIZES IN THE TOTAL DIS...
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JPS5215096B2 |
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JPS5214641B2 |
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JPS5213442B2 |
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JPS5235218A |
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JPS5234085A |
Hydrophilic textiles are dyed with azo dyes of formula D-(N=N-A)n (in which D is the gp. of a diazo or tetrazo component; A is a 6-hydroxy pyrid-2-one gp. coupled in 5-position, the N atom carrying an opt. substd. alkyl gp. with >=5C ato...
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JPS5232021A |
Disclosed are compounds of the formula, +TR wherein the X's are the same and are hydrogen or -SO3M, Y is hydrogen, C1-4alkyl, C1-4alkoxy, hydroxy, halogen, -COOM or -SO3M, K1 and K2 are the same or different and are both radicals of a co...
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JPS526742B2 |
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JPS5218735A |
Azo pigments of the formula (I) in which R1 and R2 denote H atoms, alkyl groups with 1-6 C atoms or aryl radicals, Y denotes an O or S atom or an imino group, Z denotes an O atom or an imino group and Y1-Y4 denote H or halogen atoms, alk...
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JPS523627A |
Stable, concentrated solutions of anionic dyestuffs are prepared by reacting the alkali metal or ammonium salts of anionic dyestuffs and brighteners, which are usually obtained from the industrial preparation process, in water-soluble or...
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JPS521002B2 |
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JPS52934A |
Disazo dyestuffs of the formula IN WHICH K represents the radical of a coupling component of the benzene, acetoacetic acid arylide, pyrazolone or aminopyrazole series, R1 and R2 denote hydrogen, C1-C4-alkyl, C1-C4-alkoxy or halogen and N...
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JPS51136801A |
1440088 Trisazo dyes SANDOZ Ltd 20 Sept 1973 [26 Sept 1972 20 Oct 1972] 44116/73 Heading C4P [Also in Division D1] The invention comprises dyes of Formula I where M is hydrogen or an equivalent of a cation and R is a radical of Formula (...
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JPS5143109B2 |
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JPS5143111B2 |
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JPS5143112B2 |
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JPS5143108B2 |
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JPS5143110B2 |
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JPS51132217A |
1440088 Trisazo dyes SANDOZ Ltd 20 Sept 1973 [26 Sept 1972 20 Oct 1972] 44116/73 Heading C4P [Also in Division D1] The invention comprises dyes of Formula I where M is hydrogen or an equivalent of a cation and R is a radical of Formula (...
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JPS5139222B2 |
1432577 Indolin-2-ones A H ROBINS CO Inc 16 May 1973 [17 May 1972] 23374/73 Heading C2C The invention comprises compounds of formula wherein the benzoyl group is in the 5- or 7-position of the indoline ring, and R, R1 are each H or C 1 -...
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JPS5138734B1 |
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JPS51116828A |
PURPOSE: Preparation of novel greenish black dye with good water solubility.
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JPS5134294B2 |
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JPS51101028A |
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JPS51101029A |
The invention relates to polyazo dyestuffs of the formula in which R denotes hydrogen, methyl or chlorine, X denotes methyl or ethyl and K represents a radical of the formula WHEREIN M DENOTES 1, 2 OR 3, OR REPRESENTS A RADICAL OF THE FO...
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JPS5130883B2 |
Trisazo dyes containing sulfo groups and having the formula: which for the most part give black colorations on paper and particularly on leather and are therefore especially useful as leather dyes.
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JPS5198728A |
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JPS5197633A |
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JPS5196589A |
Polyazo dyestuffs which in the form of the free acid correspond to the formula wherein R represents an etherified or esterified hydroxyl group in the o- or p-position, D represents the radical of a diazo component which, in the case that...
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JPS5186525A |
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JPS5182315A |
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JPS5123529B2 |
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JPS5122495B2 |
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JPS5169522A |
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JPS5168629A |
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JPS5160222A |
Diazopigments of the formula +TR wherein A denotes a direct bond or an aliphatic, cycloaliphatic, aromatic or heterocyclic radical, B denotes an aromatic radical, R1 denotes a H atom, an alkyl group which contains 1-4 C atoms and which i...
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JPS5139728A |
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JPS517573B2 |
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JPS517572B2 |
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JPS5125527A |
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JPS5124627A |
Liquid dyestuffs of the general formula: in which y represents 0 or 1, x and z each represent a whole number in which the sum x + y + z is a whole number from 5 to 17; a process for the preparation of such dyestuffs in which the bis-diaz...
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